The present work explores for the first time the production of ceramic bodies with complex shape through the cold sintering process. Inspired by previous works on spark plasma sintering, a spacer accessory was designed to act as a removable mold. This proof-of-concept was tested with four different ceramic systems: biogenic hydroxyapatite, zinc oxide, diatomaceous earth and construction/demolition waste materials. In all cases, the density is comparable to that obtained by cold sintering of simpler disks. Moreover, the microstructure of the complex-shaped materials is substantially homogeneous in the entire component. Some distortions can be detected when comparing the spacer and sample shape, their control and modeling being a key challenge for future works. © 2024 The Authors
Cold sintering of complex-shaped ceramic materials / Marín-Cortés, Sonia; Biesuz, Mattia; Bhandari, Subhadip; Franchin, Giorgia; Enríquez, Esther; Fernández, José F.; Sglavo, Vincenzo M.. - In: JOURNAL OF THE EUROPEAN CERAMIC SOCIETY. - ISSN 0955-2219. - 44:16(2024). [10.1016/j.jeurceramsoc.2024.116813]
Cold sintering of complex-shaped ceramic materials
Biesuz, Mattia
Secondo
;Sglavo, Vincenzo M.Ultimo
2024-01-01
Abstract
The present work explores for the first time the production of ceramic bodies with complex shape through the cold sintering process. Inspired by previous works on spark plasma sintering, a spacer accessory was designed to act as a removable mold. This proof-of-concept was tested with four different ceramic systems: biogenic hydroxyapatite, zinc oxide, diatomaceous earth and construction/demolition waste materials. In all cases, the density is comparable to that obtained by cold sintering of simpler disks. Moreover, the microstructure of the complex-shaped materials is substantially homogeneous in the entire component. Some distortions can be detected when comparing the spacer and sample shape, their control and modeling being a key challenge for future works. © 2024 The Authors| File | Dimensione | Formato | |
|---|---|---|---|
|
1-s2.0-S0955221924006861-main.pdf
accesso aperto
Tipologia:
Versione editoriale (Publisher’s layout)
Licenza:
Creative commons
Dimensione
6.94 MB
Formato
Adobe PDF
|
6.94 MB | Adobe PDF | Visualizza/Apri |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione
